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W. B. MASON. MARKING STAMP. No. 60,532. Patented Deo. 18, 1866.

nitshtatrs getest @Hita IMPROVEMENT 1N MARHNG-STAMPS.

WILLIAM B. MASON,'OF BOSTON, MASSACHUSETTS, ASSIGNOR TOV HIMSELF ANDGHARLES'H. MOORE, OF SAME PLAGE.

Lettera Patent No. 60,532, dated December'18, 1866.i A

at: shehule refrmr tu in this: 3mm atent mit making pitt tf its samt.

To ALL WHOM 1Tv MAY coNcERN:

Be it known that I, WILLIAM B. MASON, of Boston, in the county of Suolk,and State' of Massachusetts, have invented a new and useful Improvementin Marking-Tools; and I do hereby declare that the -following is a full,clear, and exact description of the construction and operation of thesame-referencebeing had to theA accompanying drawing, forming a part ofthis specification-sufficient to'enable others skilled in the art tomake and use the same without other invention or experiment., y

The present stencil-plate for marking packages, is a contrivance lof arude andI imperfect character, only adapted for use by persons notfacile at handling the marking-brush`securing accuracy at the expense oftime,4

comparatively cumbrous Whenrrplore than one personhas to be addressed,and absolutely useless when it is desired tomark articles of irregularsurface or conformation. `My invention obviates these diiculties, byemploying movable type, so that the address may be readily changed; byconstructing these type with elastic faces, to insure an impression fromtheir ywhole surface by securing them so as to 'allow them a rockingmotion; and by backing them against an elastic cushion, to obviate'theill e'ects of irregularity of surface or`conformation which they are tostamp. In

Figure lis given a section of the type, perpendicular to the line ofreading. In this, A is the elastic face, of rubber or other suitablematerial; B is the body of the type, and c c are the flanges, to confineit within the slotted face-plate. l

' Figure 2 is a longitudinal section through a marking-tool, in which Aand B represent, as before,'the elastic face and body of the type; d isthe face-plate, slotted to allow the type to ne inserted; e is anelasticbacking, consisting, in this case, of a rubber ball toAeach type. Itmight7 however, consist of a block of elastic material, of any shape, orof a spring. Preferably there should be an independent backing for eachtype, but measurably good results may lbe obtained by a plating ornetw`ork of elastic material, particularly if it be provided with knobsor projections below the individual types. '.On inking this type andpressing it, backed as described, upon an irregular surface, the elasticface conforms to the superficial irregularities, while the elasticbacking, allowing a rocking motion of the type and a variable pressure,thus causes it to coincide with the variations of general form. This isof great importance when bags or irregular-shaped packages are,to bemarked.

What I claim as my invention, and desire to secure by Letters Patent,is-

I claim making the face of the type elastic, to yield to the smallinequalities of the surface printed in combination with a small elasticbase, (less in area than the face of the typc,') to yield to the largeinequalities of the surface printed.

And in combination with the elastic face and small elastic base, I claimso arranging or holding the solid body of the type in the case, that itcan rock when required to adapt the surface of the type to theirregularities of the surface printed.

WILLIAM B. MASON.

Witnesses:

Tiros. WM. CLARKE, CHARLES BATEMAN.

